Amplifier Classes Explained

Class A, Class B, Class AB, Class D — walk into any shop or forum and you'll hear ten opinions and zero explanations. This book is the explanation.

Amplifier Classes Explained goes deep on every major amplifier class: how each one actually works, what it does with your battery power, what it wastes as heat, and what genuinely matters when you're spending your money. You'll learn conduction angle in plain English, why Class A sounds glorious and runs like a furnace, why Class B suffers crossover distortion, how Class AB became the compromise king that ran car audio for decades, and how Class D's switching revolution took over with 85–95% efficiency.

And yes — we settle it: the D does NOT stand for digital.

Inside:

• What "amplifier class" even means (conduction angle, in plain English)
• Class A: the purist furnace — glorious sound, absurd heat, and where it still belongs
• Class B: efficient but flawed — the crossover distortion problem
• Class AB: the compromise king that ran car audio for decades
• Class D deep-dive: PWM switching, 85–95% efficiency, tiny size, huge power, honest caveats
• Class G, Class H, and full-bridge designs — the honest footnotes
• Efficiency charts: what each class really costs your electrical system
• Sound quality myths busted ("Class D is bad for mids" and friends)
• Which class for subs vs mids and highs — matched to the job
• A brief history of how Class D took over car audio
• The 10-minute amplifier shopping checklist
• What separates a good amp from a cheap one (it's not the letter on the box)
• Questions everyone asks, answered straight

15 Pages PDF- Buy your next amplifier like an engineer, not a gambler.

Fair price. Honest value. No gouging.